Definition: OGP XML
<div class="syntax"><pre><span class="cp"><?xml version="1.0" encoding="UTF-8"?></span>
<span class="nt"><gml:VerticalCRS</span> <span class="na">xmlns:epsg=</span><span class="s">"urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset"</span> <span class="na">xmlns:gml=</span><span class="s">"http://www.opengis.net/gml/3.2"</span> <span class="na">xmlns:xlink=</span><span class="s">"http://www.w3.org/1999/xlink"</span> <span class="na">gml:id=</span><span class="s">"iogp-crs-8051"</span><span class="nt">></span>
<span class="nt"><gml:metaDataProperty></span>
<span class="nt"><epsg:CommonMetaData></span>
<span class="nt"><epsg:type></span>vertical<span class="nt"></epsg:type></span>
<span class="nt"><epsg:alias</span> <span class="na">alias=</span><span class="s">"mean sea level depth (ft)"</span> <span class="na">code=</span><span class="s">"7307"</span> <span class="na">codeSpace=</span><span class="s">"urn:ogc:def:naming-system:EPSG::7301"</span> <span class="nt">/></span>
<span class="nt"><epsg:alias</span> <span class="na">alias=</span><span class="s">"msl depth (ft)"</span> <span class="na">code=</span><span class="s">"7308"</span> <span class="na">codeSpace=</span><span class="s">"urn:ogc:def:naming-system:EPSG::7301"</span> <span class="nt">/></span>
<span class="nt"><epsg:informationSource></span>IOGP<span class="nt"></epsg:informationSource></span>
<span class="nt"><epsg:revisionDate></span>2017-10-11<span class="nt"></epsg:revisionDate></span>
<span class="nt"><epsg:changes></span>
<span class="nt"><epsg:changeID</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:change-request:EPSG::2014.027"</span> <span class="nt">/></span>
<span class="nt"></epsg:changes></span>
<span class="nt"><epsg:show></span>true<span class="nt"></epsg:show></span>
<span class="nt"><epsg:isDeprecated></span>false<span class="nt"></epsg:isDeprecated></span>
<span class="nt"></epsg:CommonMetaData></span>
<span class="nt"></gml:metaDataProperty></span>
<span class="nt"><gml:identifier</span> <span class="na">codeSpace=</span><span class="s">"IOGP"</span><span class="nt">></span>urn:ogc:def:crs:EPSG::8051<span class="nt"></gml:identifier></span>
<span class="nt"><gml:name></span>MSL depth (ft)<span class="nt"></gml:name></span>
<span class="nt"><gml:remarks></span>Not specific to any location or epoch.<span class="nt"></gml:remarks></span>
<span class="nt"><gml:domainOfValidity</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:area:EPSG::1262"</span> <span class="nt">/></span>
<span class="nt"><gml:scope></span>Hydrography, drilling.<span class="nt"></gml:scope></span>
<span class="nt"><gml:verticalCS</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:cs:EPSG::6495"</span> <span class="nt">/></span>
<span class="nt"><gml:verticalDatum</span> <span class="na">xlink:href=</span><span class="s">"urn:ogc:def:datum:EPSG::5100"</span> <span class="nt">/></span>
<span class="nt"></gml:VerticalCRS></span>
</pre></div>
<?xml version="1.0" encoding="UTF-8"?>
<gml:VerticalCRS xmlns:epsg="urn:x-ogp:spec:schema-xsd:EPSG:1.0:dataset" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink" gml:id="iogp-crs-8051">
<gml:metaDataProperty>
<epsg:CommonMetaData>
<epsg:type>vertical</epsg:type>
<epsg:alias alias="mean sea level depth (ft)" code="7307" codeSpace="urn:ogc:def:naming-system:EPSG::7301" />
<epsg:alias alias="msl depth (ft)" code="7308" codeSpace="urn:ogc:def:naming-system:EPSG::7301" />
<epsg:informationSource>IOGP</epsg:informationSource>
<epsg:revisionDate>2017-10-11</epsg:revisionDate>
<epsg:changes>
<epsg:changeID xlink:href="urn:ogc:def:change-request:EPSG::2014.027" />
</epsg:changes>
<epsg:show>true</epsg:show>
<epsg:isDeprecated>false</epsg:isDeprecated>
</epsg:CommonMetaData>
</gml:metaDataProperty>
<gml:identifier codeSpace="IOGP">urn:ogc:def:crs:EPSG::8051</gml:identifier>
<gml:name>MSL depth (ft)</gml:name>
<gml:remarks>Not specific to any location or epoch.</gml:remarks>
<gml:domainOfValidity xlink:href="urn:ogc:def:area:EPSG::1262" />
<gml:scope>Hydrography, drilling.</gml:scope>
<gml:verticalCS xlink:href="urn:ogc:def:cs:EPSG::6495" />
<gml:verticalDatum xlink:href="urn:ogc:def:datum:EPSG::5100" />
</gml:VerticalCRS>